Like something out of an early Neal Stephenson novel: DARPA have agreed to fund a coin-sized one-bladed nanocopter[1], from the Defense Sciences Office design brief:
The Nano Air Vehicle (NAV) Program will develop and demonstrate an extremely small (less than 7.5 cm), ultra-lightweight (less than 10 grams) air vehicle system with the potential to perform indoor and outdoor military missions.
The program will explore novel, bio-inspired, conventional and unconventional configurations to provide the warfighter with unprecedented capability for urban mission operations.
The nanocopter, called the Katana and designed by Lockheed Martin, is in addition to DARPA’s other micro-ornithopter robot concept (pictured here). Read here for more in depth background to the Katana’s progenitor, the Samurai.
[1] Although there doesn’t seem to be anything especially “nano” about it apart from being, y’know, really small.
The concept is used in the opening chapters of Scott Westerfeld’s The Risen Empire.
And it reminds me of the missile drones in Iain Banks’ Culture novels. Well, apart from their personalities – I don’t suppose these NAVs will be much of a conversation partner 🙂
There’s a discussion of Katana and a few other interesting technological developments on Charlie Stross’ blog. There could be some interesting civilian applications, along with the usual Big Brother applications.